Home / 12,435.26-18,655.85-4,115.27

Finding the Fourth Proportional to 12,435.26, 18,655.85 and 4,115.27

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Solution

The fourth proportional to 12,435.26, 18,655.85 and 4,115.27 is: 6,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.26 : 18,655.85 = 4,115.27 : x
  2. Step 2: Convert to fraction form
    12,435.26/18,655.85 = 4,115.27/x
  3. Step 3: Cross multiply
    12,435.26x = 18,655.85 × 4,115.27
  4. Step 4: Simplify right side
    12,435.26x = 76,773,916.76
  5. Step 5: Solve for x
    x = 76,773,916.76/12,435.26
  6. Step 6: Final answer
    x = 6,173.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.